| 摘要 |
PURPOSE:To reduce fuel consumption of an engine and decrease its displacement and weight, by enlarging a trochoid in its major and minor axes while lessening the trochoid in an intermediate section between the major and minor axes and increasing compression ratio of the engine. CONSTITUTION:A rotor 1, detaching its center of gravity by a distance e+e' in the major axis direction of a housing while e-e' in its minor axis direction, performs an elliptic motion. A value of R/e increases in the minor axis of a trochoid and decreases in its major axis. A gear 9 provided in an output shaft rotates being inscribed by a circumscribed gear 10. Compression ratio is increased by decreasing a constriction in the minor axis direction of the trochoid and providing its roundness so as to reduce the clearance with the rotor. In this way, fuel consumption of an engine is reduced while its displacement and weight can be decreased as required for a Diesel engine. |
